Covestro Apec® 1603 PC Resin
Apec 1603 Thermoplastic Resin Heat Resistant UV-stabilized
Covestro Apec 1603 is a high-heat, UV-stabilized polycarbonate resin engineered for demanding injection molding applications. With a Vicat softening temperature of 159°C and high viscosity (25 cm³/10 min MVR), it delivers exceptional thermal stability and flow precision. Ideal for heat-resistant industrial components.
Associated Documents
ISO TDS
Typical property data
Rheological Properties
- Melt Volume-Flow Rate (330 °C/2.16 kg): 25 cm³/10 min (ISO 1133)
- Melt Mass-Flow Rate (330 °C/2.16 kg): 26 g/10 min (ISO 1133)
- Molding Shrinkage (Parallel/Normal, 60x60x2 mm³): 0.75% (ISO 294-4)
Mechanical Properties (23 °C/50% r. h.)
- Tensile Modulus: 2350 MPa (ISO 527-1,-2)
- Yield Stress: 68 MPa (ISO 527-1,-2)
- Yield Strain: 6.3% (ISO 527-1,-2)
- Nominal Strain at Break: >50% (ISO 527-1,-2)
- Flexural Modulus: 2400 MPa (ISO 178)
- Flexural Strength: 103 MPa (ISO 178)
- Ball Indentation Hardness: 120 N/mm² (ISO 2039-1)
Thermal Properties
- Temperature of Deflection Under Load (1.80 MPa): 137 °C (ISO 75-1,-2)
- Temperature of Deflection Under Load (0.45 MPa): 150 °C (ISO 75-1,-2)
- Vicat Softening Temperature: 159 °C (ISO 306)
- Coefficient of Linear Thermal Expansion (23 to 55 °C, Parallel/Normal): 0.65×10⁻⁴/K (ISO 11359-1,-2)
- Burning Behavior (UL 94, 1.5 mm/3.0 mm): HB (UL 94)
- Glow Wire Test (GWFI): 900 °C (IEC 60695-2-12)
- Oxygen Index: 26% (ISO 4589-2)
Electrical Properties (23 °C/50% r. h.)
- Relative Permittivity (100 Hz): 3.0 (IEC 60250)
- Relative Permittivity (1 MHz): 2.9 (IEC 60250)
- Dissipation Factor (100 Hz): 10×10⁻⁴ (IEC 60250)
- Dissipation Factor (1 MHz): 90×10⁻⁴ (IEC 60250)
- Volume Resistivity: 1×10¹⁵ Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1×10¹⁶ Ω (IEC 62631-3-2)
- Electrical Strength (1 mm): 35 kV/mm (IEC 60243-1)
- Comparative Tracking Index (CTI): 250 (IEC 60112)
Other Properties (23 °C)
- Water Absorption (Saturation Value, Water at 23 °C): 0.3% (ISO 62)
- Water Absorption (Equilibrium Value, 23 °C, 50% r. h.): 0.12% (ISO 62)
- Density: 1180 kg/m³ (ISO 1183-1)
Material-Specific Properties
- Refractive Index: 1.578 (ISO 489)
- Luminous Transmittance (1 mm, Clear Transparent Materials): 89% (ISO 13468-2)
Features & Benefits
Extreme Heat Resistance
Apec® 1603 withstands 159°C softening temperatures, ensuring dimensional stability in high-heat environments like automotive under-hood parts or lighting fixtures.
UV Protection + Optical Clarity
UV stabilization prevents yellowing and degradation, maintaining 89% luminous transmittance for outdoor applications like lenses and transparent covers.
Robust Mechanical Strength
With 2350 MPa tensile modulus and >50% strain at break, it resists impact and stress cracking in durable industrial housings and connectors.
Use & Applications
- Automotive: Headlight lenses, sensor housings, under-hood components
- Electronics: LED covers, connectors, circuit breakers
- Industrial: High-heat tool housings, outdoor machinery parts
- Lighting: UV-exposed diffusers, reflectors, and transparent fixtures